Intensifying Magnetic Separation of Iron-Bearing Sulfide Minerals by Electron Beam Irradiation Pretreatment

Abstract:

The changes of magnetic property of several iron bearing sulfide minerals after strong beam current electron irradiation are examined. Data shows that the magnetic susceptibility of arsenopyrite and chalcopyrite increases markedly compared to that of pyrite and marmatite. The magnetic susceptibility of arsenopyrite exceeds the lowest ferromagnetic limit 3000 cm³/g, while the susceptibility changes of other minerals are relatively slow. The irradiation dose is the dominate parameter determining the magnetic susceptibility change. Electron beam irradiation might be a potential method to enlarge the magnetic property distinction between the minerals for their magnetic separation.

• Periodical: Advanced Materials Research (Volumes 734-737)
• Pages: 945-949
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.734-737.945
• Online since: August 2013
• Authors: Huai Fa Wang*, Shou Ci Lu, Cai Li Wang
• Keywords: Electron Beam Irradiation, Iron Bearing Sulfide, Magnetic Separation, Magnetic Susceptibility

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